Flea Yukkuris are very small. They can hardly be seen in the palm of one's hand.1. Flea Yukkuri are a recently-discovered type of yukkuri, and they are very disgusting creatures. As the name suggests, they are similar to fleas.The special ability of the Flea Yukkuri is that it can jump like a flea. Research shows that the Flea Yukkuri stores air in its body, and then expels it suddenly. Because of this, its jumping ability is very shocking. It can jump over ten times its own body height, which drastically increases the survival ability of the Flea Yukkuri.3. This is a comparison between pet yus, house yus, and flea yus. Once can see the difference in mass between them.